LTC6912IDE-1#TRPBF

Overview

The LTC6912IDE-1#TRPBF is a dual-channel, low-noise, digitally programmable gain amplifier (PGA) from Analog Devices. It features independent gain control for both channels via a 3-wire SPI interface. The -1 variant supports voltage gains of 0, 1, 2, 5, 10, 20, 50, and 100 V/V. All gains are inverting. The device operates on single or split supplies ranging from 2.7V to 10.5V total. It includes rail-to-rail input and output capabilities, an internal half-supply reference at the AGND pin, and offers channel-to-channel gain matching of 0.1dB maximum.

Feature Summary

• Dual channels with independent digital gain programming via a 3-wire serial interface
• Rail-to-rail input range and rail-to-rail output swing capability
• Internal half-supply reference generated at the AGND pin for single supply operation
• Low power hardware shutdown mode available for GN package variants

Applications

• Data acquisition systems
• Dynamic gain changing circuits
• Automatic ranging circuits
• Automatic gain control applications

Procurement Notes

Verify the specific suffix #TRPBF indicates lead-free tape and reel packaging when sourcing. Confirm that the IDE designation corresponds to the industrial temperature grade (-40°C to 85°C). Ensure compatibility with the required SSOP-16 package format if utilizing the GN-style pinout, as DFN packages differ. Check current availability status as distribution may vary by region.

Selection Notes

Select the LTC6912IDE-1#TRPBF when precise, digitally controlled attenuation or amplification is required for two independent signal paths. The -1 suffix dictates the specific gain steps (up to 100 V/V), distinguishing it from the -2 variant which offers powers of two up to 64 V/V. Consider the rail-to-rail performance and low noise density for high-fidelity signal conditioning tasks.

Part Context

This component belongs to the LTC6912 family of dual programmable gain amplifiers. The family is designed for applications requiring small PCB footprint and easy integration with digital controllers. The IDE-1 part specifically denotes the industrial temperature grade version packaged in the SSOP-16 format, providing matched amplifiers with serial digital control.

Replacement Considerations

Public confirmed substitute part numbers: None identified.